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DRA821U: DDR queries

Nikhil k
Intellectual 405 points

Part Number: DRA821U

Tool/software:

Hi Team,

I am Working on DRA821U processor, below are my queries regarding SDRAM.

1. What is the maximum  DDR size supported

2. AS per the TRM there are two MSMC memory regions for external DDR (region0 0x00 8000 0000 - 0x00 FFFF FFFF , region1 0x08 0000 0000 - 0x0F FFFF FFFF), and it is mentioned that first 2GB of Region1 is inaccessible.

So when using 8GB DDR, kindly confirm if its possible to access the 2GB from region0 and the remaining 6GB from region1 (skipping the inaccessible 2GB) and access the whole 8GB or will it be limited to 6GB only from region1.

3. Also we would like to know if its possible to skip region0 and access DDR from region1 only.

Regards,

Nikhil K